I'lIYToPHACxA FROM SLMATRA ''iCt.") 



114. Cerophysa Gestroi, n. sp. — Metallic violaceous-blue, 

 thorax bifoveolate, iin})unctate, elytra very closely and strongly 

 punctured. 



c/". Antennae witli the eighth joint elongate and strongly di- 

 lated. 



9 . Antennae with simple, short joints, the apical two ilavous. 



Length 8 lines. 



Head impunctate , metallic blue , frontal elevations entirely 

 absent, clypeus strongly raised in shape of a triangular ridge, 

 palpi robust, the apical joint conical, antennae extending to about 

 the middle of the elytra, the second joint very short, the third 

 longer than the following four joints which are triangularly 

 widened, the eighth elongate and greatly dilated, cylindrical, 

 the terminal three joints short again ; thorax one half broader 

 than long, the sides straight at the base, rather deflexed ante- 

 riorly where the angles are obsolete, the surface with a deep 

 fovea at each side , extremely finely and sparingly punctured , 

 only visi])le under a strong lens, scutellum broad, blackish, elytra 

 without basal depression, extremely closely and rather strongly 

 and somewhat rugosely punctured, the basal portion more finely 

 punctured, belo^^• metallic blue, as well as the legs, tibiae un- 

 armed, the first joint of the posterior tarsi as long as the fol- 

 lowing three joints together, anterior coxal cavities open. 



llab. Pangherang-Pisang. 



In shape and colour, the present species exactly resembles 

 the type C. nodicornis, Wied. but the antennae differ totally in 

 structure, having the dilatation transferred to only one joint, the 

 eighth ; this may perhaps be considered sufficient by some , to 

 place the insect in another genus, but in my opinion, structures 

 like this, peculiar to the antennae in the male sex only are 

 extremely variable and do not justify the erection of new genera 

 when other characters of distinction are absent. C. borneoensis, 

 Jac. agrees very nearly with the present species but has enti- 

 rely differently structured antennae, the female of that species 

 is more difficult however to separate from that of the species 

 before us and can only be distinguished by the more elongate 



Ann. del Mus. Civ. di St. Nat. Serie 2.*, Vol. XVI (9 Maggio 1896) 30 



